What is she doing?
She's taking a photo (taking photos)
What is she doing?
She's texting
What is he doing?
He's calling a friend
What are they doing?
They're chatting
What is he doing?
He's playing a game (playing games)
What's he doing?
He's checking email
What's he doing?
He's surfing the Internet
What's he doing?
He's sitting in cafe
What are they doing?
They're having lunch
What's he doing?
He's watching videos
To make objects, 3D printers using different ___ , such as plastic. (materials/program/plan)
materials
This computer ___ allows people to check and organize their email. (program/machine/instructions)
program
